CN101460586B - Adhesive system - Google Patents

Adhesive system Download PDF

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Publication number
CN101460586B
CN101460586B CN2007800203540A CN200780020354A CN101460586B CN 101460586 B CN101460586 B CN 101460586B CN 2007800203540 A CN2007800203540 A CN 2007800203540A CN 200780020354 A CN200780020354 A CN 200780020354A CN 101460586 B CN101460586 B CN 101460586B
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polymkeric substance
wood
protein
adhesive composition
weight
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CN101460586A (en
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F·考鲍兹
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Akzo Nobel Coatings International BV
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Akzo Nobel Coatings International BV
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J189/00—Adhesives based on proteins; Adhesives based on derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L97/00—Compositions of lignin-containing materials
    • C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L101/00—Compositions of unspecified macromolecular compounds
    • C08L101/02—Compositions of unspecified macromolecular compounds characterised by the presence of specified groups, e.g. terminal or pendant functional groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L101/00—Compositions of unspecified macromolecular compounds
    • C08L101/02—Compositions of unspecified macromolecular compounds characterised by the presence of specified groups, e.g. terminal or pendant functional groups
    • C08L101/06—Compositions of unspecified macromolecular compounds characterised by the presence of specified groups, e.g. terminal or pendant functional groups containing oxygen atoms
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
    • C08L2666/02—Organic macromolecular compounds, natural resins, waxes or and bituminous materials
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
    • C08L2666/02—Organic macromolecular compounds, natural resins, waxes or and bituminous materials
    • C08L2666/04—Macromolecular compounds according to groups C08L7/00 - C08L49/00, or C08L55/00 - C08L57/00; Derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L29/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical; Compositions of hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Compositions of derivatives of such polymers
    • C08L29/02—Homopolymers or copolymers of unsaturated alcohols
    • C08L29/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L89/00—Compositions of proteins; Compositions of derivatives thereof

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Veneer Processing And Manufacture Of Plywood (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention relates to an adhesive system comprising a protein and one or more polymers containing acetoacetoxy groups. It also relates to a method of producing a laminated wood based product and a particle board.

Description

Adhesive composition
The method that the present invention relates to a kind of adhesive composition and produce wood based product.
Foreword
Formaldehyde based resin such as resol, terpolycyantoamino-formaldehyde resin and urea-formaldehyde resin are widely used as the binding agent in the wood based product production.The example of this wood based product is the composite prod that comprises layer glued together, such as the glued board, laminate flooring product and the veneer products that use in furniture for example.Other example is board products such as shaving board, chipboard and fiberboard, wherein wood chip and/or xylon is pressed into plank with binding agent.
When solidifying formaldehyde based resin, formaldehyde not only can be in having made the wood based product process but also can after discharge in the use procedure of this product.For many years for healthy reason main what pay close attention to is that formaldehyde is to the release of room air.
For enough bond strength and the finished product total mass are provided so that its needs of formaldehyde-free wood tackiness agent of substitute that are suitable for containing as prior art the tackiness agent of formaldehyde based resin constantly increase.
General water-repellancy and bond strength are the key properties of reflection wood based product quality.Usually exist concrete mass parameter to satisfy the requirement of concrete the finished product established standards.For example, shaving board need to satisfy specific criteria such as inner combination, thickness swelling and water-absorbent, and the laminate flooring product needed satisfies specific criteria such as delamination.
But protein-based adhesives is used for the production of glued board because the high-performance of formaldehyde based resin and by its replacement decades ago.Dissimilar protein-based adhesives has been proposed at present.WO2005/113700A1, US 2004/0037906 and US 2004/0089418 disclose the binder composition based on soybean protein.The people such as Li, " with the soya-based tackiness agent of 1,3-, two chloro-2-propyl alcohol as solidifying agent ", Wood and Fiber Science discloses other example of protein-based adhesives in 36 (2), 2004, the 186-194 pages or leaves.US 2002/0005251 discloses the tackiness agent based on isolated soy protein.US 2005/0166796 discloses the binder composition that comprises isolated soy protein.US6,790,271 and US 2005/0234156 binder composition that comprises isolated soy protein that is used to form shaving board is disclosed.The people such as Mori; " A honeymoon-type adhesive for woodproducts... "; J.of applied polymer science; the 91st volume, 2966-2972 (2004) disclose in the wood adhesive but not with the acetoacetylation polyvinyl alcohol of any protein combination.US 4,350,788, US 4,687,809 and US 2005/0197441 A1 disclose in wood adhesive, use but not with the acetoacetylation polyvinyl alcohol of any protein combination.
Still need alternative protein-based wood adhesive that high bond strength and high product quality are provided.
Therefore the invention provides a kind of have excellent bonding strength and the protein based adhesive composition of quality product such as water-repellancy.A kind of method for preparing wood based product also is provided.
The present invention
The invention provides and a kind ofly comprise protein and one or more contain the adhesive composition of the polymkeric substance (P) of acetoacetoxy groups.
Here the meaning of " adhesive composition " is two or more formation and the combination that is used as the component of wood adhesive.Here term " tackiness agent " also comprises term " binding agent ".
The invention still further relates to a kind of method of producing wood based product, comprise and to comprise protein and one or more adhesive compositions that contains the polymkeric substance (P) of acetoacetoxy groups provide to one or more pieces of wood-based material, and make these particles and one or more other material particles, preferred pieces of wood-based material combination.
The weight ratio of protein and one or more polymkeric substance (P) is about 1:2-100:1 aptly, preferably is about 1:1-100:1, is more preferably 1:1-20:1, is most preferably 2:1-10:1.
In one embodiment, this adhesive composition comprises binder composition.
This binder composition comprises about 1-99 % by weight aptly, preferably about 3-75 % by weight, the most preferably from about protein of 5-50 % by weight.
This binder composition comprises about 0.1-99 % by weight aptly, preferred about 1-80 % by weight, 2-50 % by weight more preferably from about, even more preferably from about 2-25 % by weight, most preferably from about these one or more polymkeric substance (P) of 5-15 % by weight.
Solids content in this binder composition is about the 10-95 % by weight aptly, preferably is about the 20-75 % by weight, is most preferably the 30-50 % by weight.
In one embodiment, this adhesive composition comprises protein and these one or more polymkeric substance (P) with independent component, and preferably it is until be actually used in the gummed process and remain separately.The independent component of these of this adhesive composition also can be before being actually used in the gummed process short period of time mix, thereby form binder composition of the present invention.Aptly here the meaning of " short period of time " is approximately less than 1 hour, preferably approximately less than 30 minutes, most preferably from about less than 15 minutes.
In an embodiment of the inventive method, this adhesive composition is applied on one or more pieces of wood-based material with independent component, wherein a component comprises protein, and another component comprises this one or more polymkeric substance (P).
This component that comprises protein can comprise protein soln or dispersion, or comprises the protein as dry substance.This protein soln or dispersion are preferably the aqueous solution or water dispersion.This component that comprises one or more polymkeric substance (P) is suitably solution or dispersion, is preferably the aqueous solution or water dispersion, or as solid material.Independent component as this adhesive composition, polymkeric substance (P) is aptly to comprise about 0.1-99 % by weight, preferably about 1-80 % by weight, more preferably from about 2-50 % by weight, even 2-25 % by weight more preferably from about, most preferably from about the aqueous composition of 3-15 % by weight polymkeric substance (P) exists.
When the independent component as this adhesive composition provided to one or more pieces of wood-based material, preferred sequence was used the component (comprising the first component of application and the second component of application) of this adhesive composition.
In an embodiment of the inventive method, the first component of application comprises as solution or dispersion or as the protein of dry substance, the second component of application comprises solution or the dispersion of these one or more polymkeric substance (P).
In an embodiment of the inventive method, the first component of application comprises solution or the dispersion of these one or more polymkeric substance (P), and the second component of application comprises as solution or dispersion or as the protein of dry substance.
In an embodiment of the inventive method, the first component of application comprises these one or more polymkeric substance (P) as solid material, and the second component of application comprises as solution or dispersion or as the protein of dry substance.
In an embodiment of the inventive method, use as these one or more polymkeric substance (P) of solid material and mixture as the protein of dry substance.
In an embodiment of the inventive method, the first solution of using or dispersion components before using, second component are being carried out drying after the application.At this moment, the first component of using is preferably solution or the dispersion of these one or more polymkeric substance (P).
The example of suitable protein is natural protein, i.e. unmodified proteins, and modified protein, and they derive from such as milk (casein), soybean, potato, corn, wheat, rice, pea etc.The example of suitable soy protein products comprises soy protein concentrate, soyflour, hydrolytic soya bean protein and isolated soy protein.Preferred protein is isolated soy protein (SPI).Being used for protein of the present invention aptly is the protein of product form, for example protein powder or segregation albumen.Protein content in protein powder or the segregation albumen is about the 30-100 % by weight aptly, preferably is about the 50-100 % by weight, is most preferably the 70-100 % by weight.
Viscosity (the Brookfield that contains the aqueous composition of 12 % by weight protein, 12rpm, No. 4 spindles, 20 ℃) be about aptly 500-5000000mPa*s, preferably be about 1000-2000000mPa*s, be more preferably 50000-1500000mPa*s, be most preferably 100000-1000000mPa*s.
The weight-average molecular weight of these one or more polymkeric substance (P) is about 1000-5000000g/mol aptly, preferably is about 10000-2000000g/mol.
The content of acetoacetoxy groups is about 0.05-50 % by mole aptly in these one or more polymkeric substance (P), preferably is about 1-30 % by mole, is most preferably 5-20 % by mole.
These one or more polymkeric substance (P) preferably include the polyvinyl alcohol (AAPVA) of acetoacetylation.
Aptly, this adhesive composition also comprises one or more polymkeric substance that contains amino or amide group (P1), preferably with independent component or the component to mix with protein component.This amide group is preferably the side amide group.
Here term " amide group " comprises carbonylamino group.
These one or more polymkeric substance (P1) preferably comprise primary amino or formamido-.These one or more polymkeric substance (P1) preferably include polyvinylamine, polyvinyl formamide, vinyl alcohol-vinyl amine multipolymer, vinyl alcohol-vinyl formamide multipolymer, PAH, polymine or polyamide-based amine.These one or more polymkeric substance (P1) most preferably comprise polyvinylamine or polymine.
The weight-average molecular weight of these one or more polymkeric substance (P1) is about 1000-5000000g/mol aptly, preferably is about 10000-2000000g/mol.
Independent component as this adhesive composition, polymkeric substance (P1) is aptly to comprise about 0.1-99 % by weight, preferably about 1-80 % by weight, more preferably from about 2-50 % by weight, even 2-25 % by weight more preferably from about, most preferably from about the aqueous composition of 3-15 % by weight polymkeric substance (P1) exists.
This aqueous composition that comprises one or more polymkeric substance (P1) can further comprise inorganic or organic salt.The part of these one or more polymkeric substance (P1) can be with ionic charge, preferably is with cationic charge.The amount of the negative counter ion of these salt is about the 0-50 % by weight aptly in this aqueous composition, preferably is about the 1-30 % by weight, is most preferably the 2-20 % by weight.
One or more of this adhesive composition comprise respectively the component of protein, polymkeric substance (P) and optional polymkeric substance (P1), and this binder composition that perhaps comprises protein and polymkeric substance and optional polymkeric substance (P1) can also comprise additive and filler such as kaolin.
In an embodiment of the inventive method, this binder composition carries out dry after application and subsequently by adding entry or comprising the aqueous composition of these one or more polymkeric substance (P) or comprise the aqueous composition activation of one or more polymkeric substance (P1).
In one embodiment, this adhesive composition comprises protein, one or more polymkeric substance (P) and one or more polymkeric substance (P1) with independent component, and it is until be actually used in the gummed process and be still separately.The independent component of this adhesive composition also can be before being actually used in the gummed process short period of time mix, thereby form binder composition of the present invention.Aptly here the meaning of " short period of time " is approximately less than 1 hour, preferably approximately less than 30 minutes, most preferably from about less than 15 minutes.
In an embodiment of the inventive method, this adhesive composition is applied on one or more pieces of wood-based material with independent component, wherein a component contains protein, another component contains one or more polymkeric substance (P), and another component contains one or more polymkeric substance (P1).The component that contains protein can comprise protein soln or dispersion, or comprises the protein as dry substance.The component that contains one or more polymkeric substance (P) is suitably solution or dispersion.The component that contains one or more polymkeric substance (P1) is suitably solution or dispersion.
In an embodiment of the inventive method, the first component of using contains solution or the dispersion of protein and these one or more polymkeric substance (P), and it carried out drying contain the second component of the solution of one or more polymkeric substance (P1) or dispersion in application before.
In an embodiment of the inventive method, the first component of using contains solution or the dispersion of protein and these one or more polymkeric substance (P1), and it carried out drying contain the second component of the solution of one or more polymkeric substance (P) or dispersion in application before.
In an embodiment of the inventive method, the first component of using contains solution or the dispersion of one or more polymkeric substance (P), and it carried out drying contain the second component of the solution of protein and one or more polymkeric substance (P1) or dispersion in application before.
In an embodiment of the inventive method, the first component of using contains solution or the dispersion of one or more polymkeric substance (P1), and it carried out drying contain the second component of the solution of protein and one or more polymkeric substance (P) or dispersion in application before.
The amount of protein and one or more polymkeric substance (P) and optional one or more polymkeric substance (P1) accounts at least 75 % by weight aptly in this binder composition in molecular weight is equal to or greater than the component of 1000g/mol, also be about aptly the 75-100 % by weight, preferred at least 85 % by weight, also preferred about 85-100 % by weight, at least 95 % by weight most preferably, also 95-100 % by weight most preferably from about.
The invention still further relates to adhesive composition of the present invention in the purposes that pieces of wood-based material is composed in the wood based product.
In one embodiment of the invention, pieces of wood-based material is thin plate or thin slice.This moment, wood based product was suitably laminate flooring material, veneer floor, veneer furniture material, glued board, wallboard, roof boarding or laminated beam.
In one embodiment of the invention, pieces of wood-based material is wood chip or wood particle, such as wood chip, wood shavings, thin slice, sawdust and any similar wood based material in small, broken bits.This moment, wood based product was suitably chipboard, shaving board or fiberboard, or oriented wood chipboard.
The water capacity of the used wood particle of the present invention is about the 0-20 % by weight aptly, preferably is about the 1-10 % by weight, is more preferably the 1.5-5 % by weight.
The weight ratio of wood particle and adhesive composition (calculating with dry weight) is about 100:1-1:1 aptly, preferably is about 50:1-2:1, is more preferably 30:1-2.5:1, is most preferably 15:1-3:1.
The inventive method comprises following steps aptly: one or more pieces of wood-based material are contacted with adhesive composition of the present invention, thereby compacting makes pieces of wood-based material be combined with other wood based material.Aptly at high temperature compacting.This wood based material can be the wood based material of any type and form, such as wood chip, fiber, thin plate, thin slice, veneer, piece etc.The inventive method comprises aptly binder composition of the present invention is applied on the wood based material surface and subsequently compacting.Press temperature depends on wood based product to be manufactured, but is about aptly 50-250 ℃, preferably is about 70-200 ℃.For shaving board, chipboard and fibreboard product, press temperature preferably is about 100-225 ℃, is most preferably 150-200 ℃.For laminate product, such as glued board, laminate flooring or veneer flooring product, press temperature preferably is about 70-175 ℃, is most preferably 90-160 ℃.
Press time and press temperature are associated, and low compacting temperature needs the longer press time usually.Wood based product to be produced also determines suitable press temperature and press time.Press time is at least about 10 seconds aptly, also is about aptly 10-60 second, preferably at least about 30 seconds, and also preferred about 30 seconds to 30 minutes, most preferably at least 1 minute, also preferably about 1-15 minute.
In an embodiment of the inventive method, when making laminate product, the method comprises that aptly binder composition of the present invention is applied to the surface upward comprises about 0.1-500g/m so that glue together the junction 2The original application amount.Application quantity depends on product to be produced: preferably be about 50-200g/m for compression-moulded veneers 2, preferably be about 100-160g/m for the laminate flooring material 2The suitable upper limit depends on that also this solution is applied to the wood based material of which kind of type.This binder composition can be applied to one or two surface for the treatment of combination.If be applied to two surfaces, then the amount sum of each surface applications is corresponding to the preferred amounts of the whole gummed junction of appointment.
In another embodiment of the inventive method, when making laminate product, the method comprises aptly the independent component of adhesive composition of the present invention with protein and one or more polymkeric substance (P) is applied on the surface.Aptly, protein and polymkeric substance (P) are all used with the form of aqueous composition.As selection, protein and these one or more polymkeric substance (P) can be applied to each independent surface for the treatment of combination.The total amount that is applied to one or two surperficial adhesive composition should be so that the gummed junction comprises about 0.1-500g/m 2The original application amount.Application quantity depends on product to be produced: preferably be about 50-200g/m for compression-moulded veneers 2, preferably be about 100-160g/m for the laminate flooring material 2The suitable upper limit depends on that also this solution is applied to the wood based material of which kind of type.
In another embodiment of the inventive method, when producing shaving board, chipboard or fiberboard and analogous products, the method comprises aptly the independent component of adhesive composition of the present invention with protein and these one or more polymkeric substance (P) is applied on the wood chip.
When using separately in the manufacturing of shaving board, chipboard or fiberboard and analogous products, protein can exist with applied in dry form or with the aqueous composition form.Aptly, protein is with applied in dry form.These one or more polymkeric substance (P) can be used with solid or with the aqueous composition form.Preferably at first these one or more polymkeric substance (P) are added wood chip, add subsequently protein.
In one embodiment, in the manufacturing of shaving board, chipboard or fiberboard and analogous products, use one or more polymkeric substance (P) of aqueous composition form, add subsequently the protein of dry form.
In one embodiment, in the manufacturing of shaving board, chipboard or fiberboard and analogous products, these one or more polymkeric substance (P) of while applying solid form and the protein of dry form.
The invention still further relates to the wood based product that can obtain by the method for this production wood based product.
Wood based product is suitably shaving board, chipboard or fibreboard product.As selection, wood based product is suitably laminate product, such as glued board, laminate flooring or veneer flooring product.
Calculate with dry weight, the content of protein is about the 1-20 % by weight in the made shaving board of the present invention, chipboard or the fiberboard, preferably is about the 3-15 % by weight.
Calculate with dry weight, the content that contains the polymkeric substance of acetoacetoxy groups in the made shaving board of the present invention, chipboard or the fiberboard is about the 0.5-10 % by weight, preferably is about the 1-5 % by weight.
Further explain the present invention by following nonrestrictive embodiment.Unless otherwise mentioned, umber and percentage ratio refer to weight part and weight percentage.
Embodiment
Embodiment 1
By on the different shaving boards that different compositions are applied to 15x15cm and subsequent drying prepared veneer products in 5 days.Then with the binder layer rewetting of drying, the beech layer with 0.6mm is glued on these plates subsequently.Under 130 ℃, these assemblies were suppressed 1 minute.Test fiber tearing (anti-cutter).
The composition of testing is:
1) 14g isolated soy protein (SPI) is (from Solae's
Figure G2007800203540D00081
500E), 100ml water.
2) 8g isolated soy protein (SPI) is (from Solae's 500E), the polyvinyl alcoholic solution (AAPVA) of 50g acetoacetylation is (from Nippon Gohsei's
Figure G2007800203540D00083
Z-220) (5 % by weight).
3) 8g isolated soy protein (SPI) is (from Solae's
Figure 2007800203540100002G2007800203540D00082
500E), the polyvinyl alcoholic solution (AAPVA) of 50g acetoacetylation is (from Nippon Gohsei's
Figure G2007800203540D00085
Z-220) (10 % by weight).
Table 1
Figure G2007800203540D00086
Figure G2007800203540D00091
Embodiment 2
Acetoacetylation polyvinyl alcohol (AAPVA) by mixing wood chip that the 864g water capacity is 2 % by weight and about 11 % by weight is (from Nippon Gohsei's
Figure G2007800203540D00092
Z-220) aqueous solution is sneaked into about 85g isolated soy protein (SPI) subsequently (from Food Partner's
Figure G2007800203540D00093
601EM) make shaving board.The protein content of SPI for 90 % by weight and solids content be 94 % by weight.Make the wood chip mixture be configured as the thin plate of 30 * 30cm, and 185 ℃ of lower compactings 3 minutes and be pressed into the thick plank of 16mm.Pressure sequence is 160kg/cm in 30 seconds 2, 40kg/cm in 2.5 minutes 2, do not suppress in last 30 seconds.Measure tensile strength (inner combination, IB), thickness swelling (TSW) and water-absorbent (ABS).
By method same as described above, mix wood chip that the 994g water capacity is 2 % by weight and about 85g isolated soy protein (from Solae's 500E) make another shaving board.The protein content of SPI for 90 % by weight and solids content be 94 % by weight.The measurement tensile strength (inner combination, IB).
Table 2
Wood chip (g) Protein Protein (g) AAPVA(11％)(g) Water capacity (%) before the compacting IB(kPa) TSW24h(％) ABS24h(％)
864 SPI 853 205 14.6 490 30.2 93.7
994 SPI 79.6 - 7.8 10 - ＊ - ＊
*Do not survey
Embodiment 3
By mixing respectively acetoacetylation polyvinyl alcohol (AAPVA) that wood chip that the 50.7g water capacity is 2 % by weight and 1g exist with the aqueous solution of about 16.5 % by weight (from Nippon Gohsei's
Figure G2007800203540D00095
Z-220), sneak into subsequently the isolated soy protein (SP1) of various amounts (from Solae's 500E) make shaving board with small-scale.The protein content of SPI for 90 % by weight and solids content be 94 % by weight.Also prepared do not have SPI with reference to product and do not have AAPVA the reference product.The wood chip mixture is pressed into the thick plank of 10mm.Under 180-185 ℃ with 9kg/cm 2Suppressed 5 minutes.Be glued on two metal blocies and they are pulled open by the particle with 5 * 5cm and measure internal bond strength (IB).
Table 3
The amount (g) of protein (SPI) The amount of AAPVA (g) IB(kPa)
- 1 127
0.2 1 222
0.5 1 359
2 1 480
5 1 322
5 - 176

Claims (18)

1. adhesive composition, it comprises protein and one or more contain the polymkeric substance (P) of acetoacetoxy groups, described adhesive composition comprises the binder composition that contains 5-50 % by weight protein, and described protein is the unmodified proteins that comes from soybean, potato, corn, wheat, rice or pea.
2. adhesive composition as claimed in claim 1, the weight ratio of wherein said protein and described one or more polymkeric substance (P) is 1: 2-100: 1.
3. adhesive composition as claimed in claim 1 or 2, the weight ratio of wherein said protein and described one or more polymkeric substance (P) is 1: 1-20: 1.
4. adhesive composition as claimed in claim 1 or 2, wherein said binder composition comprises described one or more polymkeric substance (P) of 3-15 % by weight.
5. adhesive composition as claimed in claim 1 or 2, wherein said one or more polymkeric substance (P) comprise the polyvinyl alcohol of acetoacetylation.
6. adhesive composition as claimed in claim 1 or 2, it comprises one or more polymkeric substance that contains amino or amide group (P1).
7. adhesive composition as claimed in claim 1 or 2, wherein said one or more polymkeric substance (P1) comprise polyvinylamine.
8. a method of producing wood based product comprises each described adhesive composition among the claim 1-7 is provided to one or more pieces of wood-based material, and other material particle of these particles and one or more is combined.
9. method as claimed in claim 8 wherein provides described adhesive composition to pieces of wood-based material as binder composition.
10. method as claimed in claim 9 is wherein carried out described binder composition dry and is activated by the aqueous composition that adds entry or comprise the aqueous composition of described one or more polymkeric substance (P) or comprise one or more polymkeric substance that contain amino or amide group (P1) subsequently after application.
11. method as claimed in claim 10, wherein said adhesive composition comprises described one or more with independent component and contains the polymkeric substance (P1) of amino or amide group.
12. method as claimed in claim 10, wherein said one or more polymkeric substance (P1) comprise polyvinylamine.
13. such as each described method among the claim 8-9, wherein said particle is one or more in thin plate, thin slice and the veneer.
14. method as claimed in claim 13, wherein said wood based product are veneer floor, veneer furniture material, glued board, wallboard, roof boarding or laminated beam.
15. such as each described method among the claim 8-9, wherein said particle is wood chip or wood particle.
16. method as claimed in claim 15, wherein said wood based product are chipboard, shaving board or fiberboard, or oriented wood chipboard.
17. the wood based product by each described method acquisition among the claim 8-15.
18. each described adhesive composition is gluing together pieces of wood-based material to form the purposes in the wood based product among the claim 1-7.
CN2007800203540A 2006-06-01 2007-05-30 Adhesive system Expired - Fee Related CN101460586B (en)

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NO20085392L (en) 2008-12-30
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RU2459850C2 (en) 2012-08-27
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CA2653982C (en) 2014-01-28
AR061213A1 (en) 2008-08-13
CN101460586A (en) 2009-06-17

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